Terback



(No Modem v 2sheets-sheet 1.

E. G. LAUTERBAGK.

DIP SOLDERING MAGHINE. No. 445,956. Patented Feb. 3,1891.

N0-Model.) 2 sheets-sheet 2.

E. G. LAUTBRBAGKn l DIP SOLDERING MACHINE.

NQ. 445,956.- -Patented Feb. 3,1891.

IWW Of 75595 UNITED STATES PATENT OFFICE.

EDVARD GEORGE LAU'IERBACK, OF CHICAGO, ILLINOIS, ASSIGNOR TO ALFRED BOOTH, OF SAME PLACE.

DIP-SOLDERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 445,956, dated February 3, 1891.

Application filed December 24, 1889. Serial No. 334,878. (No model.)

nthat class of machines employed in soldering the side seams of tin cans, and has forits object the production of a device of this character that is simple in construction and easily and conveniently operated, as will be hereinafter set forth.

To this end the machine consists of a Wheel-like structure rotatingin a horizontal plane, the outer ends of the series of arms or spokes being provided with a can-holding mechanism and rotated on a circular track having an acid and solder bath receptacle located in the circumference of said track.

Figure l is a plan of a machine embodying my improved features; Fig. 2, a vertical transverse section; Fig.` 3, a detached plan of one of the can-carrying arms, including a 3o part of the circular track; Fig. 4, a detached detail of construction; Fig. 5, a broken-away vertical transverse section through the solder bath, showing a can-body in position thereon and the depth to which it is submerged; and Fig. 6, a vertical longitudinal section in plane 6, Fig.' 3, showing the can holding or clamping mechanism with a can in position.

Referring to the drawings, A represents a circular track supported on anumber of legs A. (Shown in Fig. 2.) It is of course obvious that any suitable means other than the legsshown may be employed to support the track at the proper height from the Hoor.

The circular track is L-shaped in oros.- section, and the acid bath receptacle or trough B is located at`one point in the plane of circumference and along the inner horisontal edge a of the track. A little in advance of the acid bath is located the solderbath receptacle C. Each of these trough-like receptacles conforms to the curvature of the track and is iu the pathway of the canbodies, as shown in Fig. l. The vertical edge or part a' of the track running along the bath-receptacles is undulating-that is, the edge a is cut down, as at a2, (see Fig. 2,) so that the can-body will gradually descend the inclined plane a3 to a horizontal position on a lower level and immerse the seam part of the can in the acid bath. As the can leaves the iirst bath it ascends the inclined plane a* and is correspondingly tilted, so that the drip of the liquid flux Will be returned to its receptacle. The can next descends the incline of and dips into the solder bath, and

then up the incline aand tilting or inclining Y the can, so that the superfluous solder runs back into its proper receptacle. The can is then carried down the incline a7 ont-o the horizontal or level part of the track. The ineline a 0,7 is higher and sharper than any other part of the track and brings the can nearer to a vertical position, so that the superfiuous solder runs oit quickly and the solder remaining on the seam levels back over the seam as it passes down the last inclineA a7.

D represents the hub of the Wheel -like structure, which is rigidly mounted on the vertical shaft D.

To the outer edge of the annular hub are bolted a number of hinge-plates as, arranged clear around at intervals, as shown in Fig. l. These plates are each provided with two cylindrical bearing-lugs Y), between Which are inserted the inner ends of the series of radial arms E, loosely retained in place by the horizontal pivot-pins Z9.

To the outer ends of the respective arms E is secured the bracket frame or frames F, in which the cans G are mounted and held as they travel around the circular track in the process of soldering. The frames F are secured to the arms bythe pivot-bolts b2, which provide for an automatic rocking adjustment at right angles to the Wheel-arms, whereby the frames will conform to the undulations of the track. The outer ends of the series of radial arms have an up-and-down movement at the same time on the pivot-pins b', which secure the inner ends of the arms to the hubdisk.

,Tlie outer sides of the frames-F are each IOO t l I provided with two bearing-pins b3, on which are loosely mounted the friction-rollers b4, resting on th-e top edge of the track and easing the travel of the can-carrying arms. The respective ends of the frames F are formed with the tubular bearing parts b5 if, in which are inserted the shafts H H adapted lto have a longitudinal adjustment therein. The shaft l-I is held in place by the set-screw 127, which permits of the salne being set in or out with reference to the longitudinal dimensions of the can-body. The inner end of the shaft I'I is provided with the clamping-head d', which bears against one end of the can-body when holding the same in position to be soldered. The head or clamping-plate d is provided with a number of elongated apertures cl2, (see Fig. 4,) in each of which is inserted a bolt cl3, theouter ends of these bolts being threaded for the reception ofthe fastening-untel, while the inner ends terminate in the enlarged conical heads d5. The shaft l-I is provided on its inner end with the clamping-head d, and has the conical headed bolts di adjustably inserted therein, and which is an exact duplicate of the head d. (Illustrated in Fig. 4.) i The ends of the can-body rest on the conical heads, (see Fig. 6,) which extend inside, as shown, and support the can in a horizontal plane and proper position with reference to the flux and solder baths. The conical heads are so disposed as to correspond to the curvature of the can-body, and by reason of the elongated apertures in the clampingheads may be moved in or out in adjusting them with reference to the diameter of the can@ The conically-shaped heads d5 dT conveniently permit of the can being inserted, and the same more readily drops out when the pressure of the clamping heads or plates is relaxed. The spiral spring d8, mounted on shaft H', serves to automatically retainy the head-'plates in a clamping position.

The tripping finger or fingers f are pivoted at or neartheir longitudinal centers to the extension f', formed on the bracketframes F, the inner end of which is adapted vto ybear loosely against the post g, inserted in the outer end of the shaft II', as shown in Fig. (5.

' The circular track is provided at one side with the inwardly-projecting offset g', and a little farther along with a second offset g2.

These offsets are beveled at both ends, asI

shown at 7L, Figs. l and 8, and are in the pathway of the outer ends of the series of trippingfingers f, and throw the same into the position illustrated in Fig. 3, while the inner ends have contact with the post g and move the shaft H outwardly and withdraw its respective head o r plate from a clamping position and allow the soldered can-body to drop out,

the relative position of the can being indicated by dotted lines (see Fig. 3) when the clamping-pressure is relaxed. lVhen the fingers pass on out of contact with the irst offset, these parts assume their normal position. Contact of the fingers with the second offset g2 spreads or opens the clampingmechanism when the can-body to be soldered is inserted.

A cylindrical can-body is shown in the drawings; but it is obvious that with a very slight alteration in the clamping mechanism cans of a different contour may be soldered by this machine. This arrangement provides a machine of the character described that is simple in construction and requires but one attendant to operate the same.

Motion may be transmitted to the vertical driving-shaft by any suitable means. i

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a can-soldering` machine, the combination,'with a circular track having descending and ascending planes, as described, acid and solder baths located along the line of the track, and the central rotating hub, of arms hinged to the hub, can-holdin g frames swiveled to said arms, and bearing-points on said frames 'engaging the circular track on opposite sides of the axes of their swivel-joints, whereby the cans are tipped longitudinally by the action of the descending and ascending planes, substantially as described.

2. In a can-soldering machine,`thecombi nation, with a circular track having descending and ascending planes, as described, acid and solder baths located alongthe lineof the track, and the central rotating hub, of arms hinged to the hub, can-holding frames swiveled to said arms, said frames having adjustable clamping-plates adapted to engage the ends of the cans and to hold them transversely to the arms to solder` their body-seams, and rollers on said frames for traveling on the circular track on the opposite sides of the axes of the swivel-joints of the frames, whereby the cans are tipped longitudinally by the action of the descending `and ascending planes, substantially as described.

3. In a can-soldering` machine, a clamping head or heads provided with a number of elongated radial openings and the bolts inserted in said openings, said bolts being threaded at one end to receive afasteningnut and the opposite end' terminating in'a conical head which extends' inside of the can-body, substantially as described.

EDWARD GEORGE `LAUTERBACK.

l/Vitnesses z L. M. FREEMAN, L. B. OOUPLAND.

IOO

IOS

IIO 

